1640451890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17903}}^1$

素因数の和:17952

約数の個数: 96

約数和(自身を含む): 3967812864

約数和(自身を除く): 2327360974

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 49, 55, 70, 77, 85, 98, 110, 119, 154, 170, 187, 238, 245, 374, 385, 490, 539, 595, 770, 833, 935, 1078, 1190, 1309, 1666, 1870, 2618, 2695, 4165, 5390, 6545, 8330, 9163, 13090, 17903, 18326, 35806, 45815, 89515, 91630, 125321, 179030, 196933, 250642, 304351, 393866, 608702, 626605, 877247, 984665, 1253210, 1378531, 1521755, 1754494, 1969330, 2130457, 2757062, 3043510, 3347861, 4260914, 4386235, 6695722, 6892655, 8772470, 9649717, 10652285, 13785310, 14913199, 16739305, 19299434, 21304570, 23435027, 29826398, 33478610, 46870054, 48248585, 74565995, 96497170, 117175135, 149131990, 164045189, 234350270, 328090378, 820225945, 1640451890]

約数ペア:

[(1, 1640451890), (2, 820225945), (5, 328090378), (7, 234350270), (10, 164045189), (11, 149131990), (14, 117175135), (17, 96497170), (22, 74565995), (34, 48248585), (35, 46870054), (49, 33478610), (55, 29826398), (70, 23435027), (77, 21304570), (85, 19299434), (98, 16739305), (110, 14913199), (119, 13785310), (154, 10652285), (170, 9649717), (187, 8772470), (238, 6892655), (245, 6695722), (374, 4386235), (385, 4260914), (490, 3347861), (539, 3043510), (595, 2757062), (770, 2130457), (833, 1969330), (935, 1754494), (1078, 1521755), (1190, 1378531), (1309, 1253210), (1666, 984665), (1870, 877247), (2618, 626605), (2695, 608702), (4165, 393866), (5390, 304351), (6545, 250642), (8330, 196933), (9163, 179030), (13090, 125321), (17903, 91630), (18326, 89515), (35806, 45815)]